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  1. Qt
  2. QTBUG-86664

When using QtMqtt with thingsboard as a server then the fixed PUBACK header can end up with the reserved part being set to 2 which causes it to fail

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Invalid
    • Affects Version/s: 5.15.1
    • Fix Version/s: None
    • Component/s: MQTT
    • Platform/s:
      All

      Description

      When using QtMqtt with thingsboard as a server then the fixed PUBACK header can end up with the reserved part being set to 2 which causes it to fail as it is expecting the reserved part to be set to 0. When it is set to 2 then it will fail with the message: Malformed fixed header for UNSUBACK/PUBACK/PUBREC/PUBCOMP.

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            Assignee:
            heimrich Karsten Heimrich
            Reporter:
            andysh Andy Shaw
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              Resolved:

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